vestichИзвестия Национальной академии наук Беларуси. Серия химических наукProceedings of the National Academy of Sciences of Belarus, Chemical Series1561-83312524-2342The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"vestich-169Research ArticleКОЛЛОИДНАЯ ХИМИЯCOLLOIDAL CHEMISTRYОпределение удельной поверхности по адсорбции азота и сопоставление ее с геометрической поверхностью твердого телаDetermination of the specific surface by nitrogen adsorption and comparing it with the geometric surface of the solidКомаровВ. С.KomarovV. S.steanlab@gmail.comБесарабС. В.BesarabS. V.steanlab@gmail.comИнститут общей и неорганической химии НАН БеларусиInstitute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus201608062016012326Copyright © Комаров В.С., Бесараб С.В., 20162016Комаров В.С., Бесараб С.В.Komarov V.S., Besarab S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestichem.belnauka.by/jour/article/view/169

Рассматривается вопрос о cопоставлении удельной поверхности, определенной по методу БЭТ, с геометрической площадью. Определена причина данных расхождений и показано, что в зависимости от типа упаковки молекул адсорбата в адсорбционном слое степень расхождения удельной поверхности, определенной по методу БЭТ, с геометрической площадью твердого тела колеблется в пределах 10-20%.

The paper deals with the problem of comparing the specific surface area determined by the BET method, and the geometric area. The cause of these discrepancies has been isolated and it has been shown that, depending on adsorbate molecules' packing type in the adsorption layer, the degree of divergence of the specific surface area determined by BET and geometric area of the solid, ranges between 10 and 20%.

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